<template>
  <div class="app-container">
    <el-form :model="queryParams" ref="queryForm" :inline="true" v-show="showSearch" label-width="68px">
      <el-form-item label="关键字" prop="keyword">
        <el-input
          v-model="queryParams.keyword"
          placeholder="请输入关键字"
          clearable
          size="small"
          @keyup.enter.native="handleQuery"
        />
      </el-form-item>
      <el-form-item label="父消息关键字" prop="fatherMsgId">
        <el-select v-model="queryParams.fatherMsgId" placeholder="请选择父消息关键字" clearable size="small">
          <el-option
          v-for="dict in customerServiceOptions"
          :key="dict.id"
          :label="dict.keyword"
          :value="dict.id"
          />
        </el-select>
      </el-form-item>
      <el-form-item label="父消息关键字" prop="fatherMsgKeyword">
        <el-input
          v-model="queryParams.fatherMsgKeyword"
          placeholder="请输入父消息关键字"
          clearable
          size="small"
          @keyup.enter.native="handleQuery"
        />
      </el-form-item>
      <el-form-item>
        <el-button type="cyan" icon="el-icon-search" size="mini" @click="handleQuery">搜索</el-button>
        <el-button icon="el-icon-refresh" size="mini" @click="resetQuery">重置</el-button>
      </el-form-item>
    </el-form>

    <el-row :gutter="10" class="mb8">
      <el-col :span="1.5">
        <el-button
          type="primary"
          icon="el-icon-plus"
          size="mini"
          @click="handleAdd"
          v-hasPermi="['message:service:add']"
        >新增</el-button>
      </el-col>
      <el-col :span="1.5">
        <el-button
          type="success"
          icon="el-icon-edit"
          size="mini"
          :disabled="single"
          @click="handleUpdate"
          v-hasPermi="['message:service:edit']"
        >修改</el-button>
      </el-col>
      <el-col :span="1.5">
        <el-button
          type="danger"
          icon="el-icon-delete"
          size="mini"
          :disabled="multiple"
          @click="handleDelete"
          v-hasPermi="['message:service:remove']"
        >删除</el-button>
      </el-col>
      <el-col :span="1.5">
        <el-button
          type="warning"
          icon="el-icon-download"
          size="mini"
          @click="handleExport"
          v-hasPermi="['message:service:export']"
        >导出</el-button>
      </el-col>
	  <right-toolbar :showSearch.sync="showSearch" @queryTable="getList"></right-toolbar>
    </el-row>

    <el-table v-loading="loading" :data="serviceList" @selection-change="handleSelectionChange" :border="true">
      <el-table-column type="selection" width="55" align="center" />
      <el-table-column label="关键字" align="center" prop="keyword" />
      <el-table-column label="内容" align="center" prop="content" />
      <el-table-column label="父消息id" align="center" prop="fatherMsgId" />
      <el-table-column label="父消息关键字" align="center" prop="fatherMsgKeyword" />
      <el-table-column label="询问次数" align="center" prop="askCount" />
      <el-table-column label="操作" align="center" class-name="small-padding fixed-width">
        <template slot-scope="scope">
          <el-button
            size="mini"
            type="text"
            icon="el-icon-edit"
            @click="handleUpdate(scope.row)"
            v-hasPermi="['message:service:edit']"
          >修改</el-button>
          <el-button
            size="mini"
            type="text"
            icon="el-icon-delete"
            @click="handleDelete(scope.row)"
            v-hasPermi="['message:service:remove']"
          >删除</el-button>
        </template>
      </el-table-column>
    </el-table>
    
    <pagination
      v-show="total>0"
      :total="total"
      :page.sync="queryParams.pageNum"
      :limit.sync="queryParams.pageSize"
      @pagination="getList"
    />

    <!-- 添加或修改客服消息对话框 -->
    <el-dialog :title="title" :visible.sync="open" width="500px" append-to-body>
      <el-form ref="form" :model="form" :rules="rules" label-width="80px">
        <el-form-item label="关键字" prop="keyword">
          <el-input v-model="form.keyword" placeholder="请输入关键字" />
        </el-form-item>
        <el-form-item label="内容" prop="content">
          <el-input v-model="form.content" type="textarea" placeholder="请输入内容" />
        </el-form-item>
        <el-form-item label="父消息id" prop="fatherMsgId">
          <el-select v-model="form.fatherMsgId" placeholder="请选择父消息id" clearable size="small">
            <el-option
            v-for="dict in form.id?customerServiceOptionsThis:customerServiceOptions"
            :key="dict.id"
            :label="dict.keyword"
            :value="dict.id"
            />
          </el-select>
        </el-form-item>
      </el-form>
      <div slot="footer" class="dialog-footer">
        <el-button type="primary" @click="submitForm">确 定</el-button>
        <el-button @click="cancel">取 消</el-button>
      </div>
    </el-dialog>
  </div>
</template>

<script>
import { listService, getService, delService, addService, updateService, exportService, getOptions, selectListVo } from "@/api/message/service";

export default {
  name: "Service",
  components: {
  },
  data() {
    return {
      // 遮罩层
      loading: true,
      // 选中数组
      ids: [],
      // 非单个禁用
      single: true,
      // 非多个禁用
      multiple: true,
      // 显示搜索条件
      showSearch: true,
      // 总条数
      total: 0,
      // 客服消息表格数据
      serviceList: [],
      // 客服消息下拉列表
      customerServiceOptions: [],
      // 客服消息下拉列表(去除当前正在修改的值)
      customerServiceOptionsThis: [],
      // 弹出层标题
      title: "",
      // 是否显示弹出层
      open: false,
      // 查询参数
      queryParams: {
        pageNum: 1,
        pageSize: 10,
        keyword: null,
        content: null,
        fatherMsgId: null,
        askCount: null,
        buildOperator: null,
        buildDate: null,
        buildTime: null,
        modifiedOperator: null,
        modifiedDate: null,
        modifiedTime: null,
        fatherMsgKeyword: null
      },
      // 表单参数
      form: {},
      // 表单校验
      rules: {
        keyword: [
          { required: true, message: "关键字不能为空", trigger: "blur" }
        ],
        content: [
          { required: true, message: "内容不能为空", trigger: "blur" }
        ]
      }
    };
  },
  created() {
    this.getList();
    getOptions().then(response => {
      this.customerServiceOptions = response.data;
    });
  },
  methods: {
    /** 查询客服消息列表 */
    getList() {
      this.loading = true;
      selectListVo(this.queryParams).then(response => {
        this.serviceList = response.rows;
        this.total = response.total;
        this.loading = false;
      });
    },
    // 取消按钮
    cancel() {
      this.open = false;
      this.reset();
    },
    // 表单重置
    reset() {
      this.form = {
        id: null,
        keyword: null,
        content: null,
        fatherMsgId: null,
        askCount: null,
        buildOperator: null,
        buildDate: null,
        buildTime: null,
        modifiedOperator: null,
        modifiedDate: null,
        modifiedTime: null,
        fatherMsgKeyword: null
      };
      this.resetForm("form");
    },
    /** 搜索按钮操作 */
    handleQuery() {
      this.queryParams.pageNum = 1;
      this.getList();
    },
    /** 重置按钮操作 */
    resetQuery() {
      this.resetForm("queryForm");
      this.handleQuery();
    },
    // 多选框选中数据
    handleSelectionChange(selection) {
      this.ids = selection.map(item => item.id)
      this.single = selection.length!==1
      this.multiple = !selection.length
    },
    /** 新增按钮操作 */
    handleAdd() {
      this.reset();
      this.open = true;
      this.title = "添加客服消息";
    },
    /** 修改按钮操作 */
    handleUpdate(row) {
      this.reset();
      const id = row.id
      getService(id).then(response => {
        this.form = response.data;
        this.open = true;
        this.title = "修改客服消息";
        var arr = [];
        this.customerServiceOptions.forEach(element => {
          if(id != element.id){
            arr.push(element);
          }
        });
        this.customerServiceOptionsThis = arr;
      });
    },
    /** 提交按钮 */
    submitForm() {
      this.$refs["form"].validate(valid => {
        if (valid) {
          var form = JSON.parse(JSON.stringify(this.form));
          var id = form.id;
          if (id != null) {
            updateService(form).then(response => {
              this.msgSuccess("修改成功");
              this.open = false;
              var arr = this.customerServiceOptions;
              var len = arr.length;
              for(var i=0; i<len; i++){
                if(arr[i].id == id){
                  // this.customerServiceOptions.splice(i,1,form);
                  this.customerServiceOptions[i] = form;
                  break;
                }
              }
              this.getList();
            });
          } else {
            addService(form).then(response => {
              this.msgSuccess("新增成功");
              this.open = false;
              this.customerServiceOptions.push(response.data);
              this.getList();
            });
          }
        }
      });
    },
    /** 删除按钮操作 */
    handleDelete(row) {
      const ids = row.id || this.ids;
      this.$confirm('是否确认删除客服消息编号为"' + ids + '"的数据项?', "警告", {
          confirmButtonText: "确定",
          cancelButtonText: "取消",
          type: "warning"
        }).then(function() {
          return delService(ids);
        }).then(() => {
          var idsArr = row.id?[row.id] : ids;
          var optArr = this.customerServiceOptions;
          var optLen = optArr.length;
          var idsLen = idsArr.length;

          // 要删除的索引集合
          var newArr = [];
          // 获取ID在下拉列表中的索引
          for(var i=0; i<idsLen; i++){
            for(var j=0; j<optLen; j++){
              if(idsArr[i] == optArr[j].id){
                newArr.push(j);
                break;
              }
            }
          }
          // 将索引从大到小排序(从后往前删)
          newArr.sort((a,b) => b - a);
          var newLen = newArr.length;
          // 从最后一个位置开始删除
          for(var i=0; i<newLen; i++){
            this.customerServiceOptions.splice(newArr[i],1);
          }
          this.getList();
          this.msgSuccess("删除成功");
        }).catch(() => {});
    },
    /** 导出按钮操作 */
    handleExport() {
      const queryParams = this.queryParams;
      this.$confirm('是否确认导出所有客服消息数据项?', "警告", {
          confirmButtonText: "确定",
          cancelButtonText: "取消",
          type: "warning"
        }).then(function() {
          return exportService(queryParams);
        }).catch(() => {});
    }
  }
};
</script>
